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Monday, 22 September 2014

Astronomy. Lunar crater Davy.

Davy (35 km) crater is a small crater with a common format, but would not be quickly recognizable if it would not have had a strange crater at east called Davy Y.

On the southeast of Davy, is a small circular crater named Davy A.

Although these craters start the highlands, they are located on the Mare Nubium.

Davy Y (70 km), has a feature on its floor that extends beyond the crater, and continuing eastward, a perfect chain of small craters in a string column to the crater Ptolemaeus (153 km), which I find interesting because I have not met anywhere on the Moon such a kind of formation. 

This chain of craters is called Catena Davy, and contains 23 craters which are likely to occured after a single impact with a body that disintegrated before impact. This chain can be seen dimly here, but I will look further observation with the telescope specifically.

The name Davy, was given after Humphry Davy (December 17, 1778 - 29 1829), who was an inventor and a chemist. It is best remembered for his discoveries of alkali metals, but also as contributions to the discovery of elementary nature of chlorine and iodine.

Moon Age: 9.05 days
Phase: 70.5% (0% = New, 100% = Full)
Distance: 399.221 km

Optics: Celestron C8-Newtonian telescope, 20mm Plossl, 2x barlow
Mount: CG5 (EQ5)
Camera: Sony CX130
Filter: no
Date: 10/03/2014
Location: Baia Mare, Romania
Processing: FastStone Image Viewer

Image for your orientation from May 11, 2011.


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